Re: OT: 3750 stacking

You are correct in that the priority will take effect immediately but
it will not change the stackmaster until a reload. Following is an
exert from the Cisco 3750x config guide:

" You can change the priority value for a stack member by using the
switch stack-member-number priority new-priority-value global
configuration command. For more information, see the "Setting the
Stack Member Priority Value" section. Another way to change the member
priority value is by changing the SWITCH_PRIORITY environment
variable, as explained in the "Controlling Environment Variables"
section on page 3-20.

The new priority value takes effect immediately but does not affect
the current stack master. The new priority value helps determine which
stack member is elected as the new stack master when the current stack
master or the switch stack resets."

link to page: http://www.cisco.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.2_53_se/configuration/guide/swstack.html

HTH

On Tue, Mar 22, 2011 at 11:52 AM, Jay McMickle <jay.mcmickle_at_yahoo.com> wrote:
> The priority will take effect immediately and doesn't require a reboot.
> Only on the renumbering of the switches in the stack.
>
> Updated this topic to OT.
>
> PS- You are correct in making switch 1 priority 15 to stay the master.
>
>
>
>
> Regards,
> Jay McMickle- CCNP, CCSP, CCDP, MCSE
> http://mycciepursuit.wordpress.com/
>
>
> ________________________________
> From: Usama Pervaiz <chaudri_at_gmail.com>
> To: Jay McMickle <jay.mcmickle_at_yahoo.com>
> Cc: GAURAV MADAN <gauravmadan1177_at_gmail.com>; Cisco certification
> <ccielab_at_groupstudy.com>
> Sent: Tue, March 22, 2011 10:44:37 AM
> Subject: Re: 3750 stacking
>
> Also if you always want switch #1 to be master set the priority to 15
> (switch 1 priority 15). Once this is done I dont think there is a
> non-disruptive way to make switch # 1 the master as there is no
> preempt. You will need to reload the stack. I would be interested to
> see if there is a better way? anyone?
>
>
>
> On Tue, Mar 22, 2011 at 11:33 AM, Jay McMickle <jay.mcmickle_at_yahoo.com>
> wrote:
>> You need to manually remove it.
>>
>> no switch 2 provision
>>
>>
>>
>> Regards,
>> Jay
>> McMickle- CCNP, CCSP, CCDP, MCSE
>> http://mycciepursuit.wordpress.com/
>> ________________________________
>> From: GAURAV MADAN
>> <gauravmadan1177_at_gmail.com>
>> To: Cisco certification <ccielab_at_groupstudy.com>
>> Sent: Mon, March 21, 2011 11:40:18 PM
>> Subject: 3750 stacking
>>
>> Hi
>>
>> Sorry for
>> little off-track topic ..
>>
>> I have couple of 3750 switches connected in a stack
>> fashion ( stack port 1
>> of SW1 to stack port 1 of SW2 ).
>> SW1 was my master and
>> SW2 was my slave switch .
>> When logged in SW1 ; I can see g1/0/1 to g1/0/24 AS
>> well as g2/0/1 to
>> g2/0/24 .. All fine ..
>>
>> Now I wished to see SW2 as switch
>> number 4 instead of switch number 2 ..
>>
>> Issued the command :
>> # switch 2
>> renumber 4
>> # reload 2
>>
>> Once reload is successful ; I see the following :
>> 3750-Sw#show switch
>> Switch/Stack Mac Address : 0024.5136.ba80
>>
>> H/W Current
>> Switch# Role Mac Address Priority
>> Version State
>> ----------------------------------------------------------
>> 1
>> Member 0023.ea64.2280 1 0 Ready
>> 2 Member 0000.0000.0000
>> 0 0 Provisioned
>> *4 Master 0024.5136.ba80 1 0 Ready
>> Also I am seeing ports g1/0/1 - 24 , g2/0/1 - 24 AND g4/0/1 - 24
>>
>> Questions
>> 1) Both 1 and 4 are masters ? How
>> 2) Why am i seeing the ports corresponding
>> to 2 ?
>>
>> Thanks
>> Gaurav Madan
>>
>>
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Received on Tue Mar 22 2011 - 12:39:16 ART